Machine and bolt works



0. R. OLSEN.

LLLLL Y. No. 280,228. Patented June 26, 1883.

of a well-known form.

UNITED STATES PATENT OFFICE.

OLAF R: OLSEN, OF INDIANAPOLIS, IN D. ASSIGNOR TO THE INDIANAPOLIS MACHINE AND BOLT VORKS, OF SAME PLACE.

PULLEY.

SPECIFICATION formingpart of Letters Patent No. 280,228, dated June 26, 1883.

Application filed May 21,1883.

. Referring to the accompanying drawings,

which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure l is a side elevation of sucha pulley embodying my present invention; Fig. 2, a central vertical section of the same, and Fig. 3 a detail view of the fastening on an en larged scale.

In said drawings, the portions marked A represent the shaft on which the pulley is mounted;

B, the hub O, the web, and D the rim.

The hub B is mounted on the shaft A in the ordinary manner, and, except in being corrugated to fit the corrugated sheet-metal web, is The corrugations on one are formed to fit into those of the other, so as to clamp the web' tightly when said web is placed between them.

The web 0 is made of any kind of sheet metal desired, a light tough sheet-steel being deemed preferable, and is corrugated for the purpose of stiffening it. flanges 0 formed on the edge and bent out each way, to fit against the under side of therim. These ears are manifestly very much superior to angle-irons in thematter of dura- It has the ears or (No model.)

strain on. these rivets as on rivets passing through the web, the rim being of stiffer ma' terial, and therefore forming a firmer support. Besides, the strain comes in a different direction, and one which is less liable to tear loose the fastenings.

The rim D is an ordinary sheet or hoop metal rim, and is secured to the web 0 by means of the ears 0 and rivets d, as before indicated.

I Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a pulley the web of which is composed of sheet metal, the ears 0, formed integrally with said web, and serving as a means of fastening the same to the rim, substantially as set forth.

2. In a pulley, the combination of a sheetmetal web, 0, having ears 0 formed integrally therewith and extending out at right angles on each side thereof, and the rim D, secured to said web by means of said ears and the rivets cl, substantially as shown and specified.

In witness whereof I have hereunto set my hand and seal, at Indianapolis,Indiana, this 18th day of May, A. D. 1883.

OLAF RYE OLSEN. 

